MPTCP Redundancy Mode

[aydinj]

I use MPTCP for online gaming in redundant mode to stabilize the lowest possible latency for UDP traffic and send the data replicated through all the active subflows available. I was using OpenMPTCProuter version 0.59.1-5.4. However, after upgrading to 0.60, the Multipath TCP scheduler doesn't have "redundancy." It is missed. Please add it.

[Ysurac]

With kernel 6.1, redundancy mode is no more available.
This will be added back in 6.6 kernel.

[KevinashoUWU]

It is on network / MPTCP.
It's called red.o, something like that. But it doesn't work for me, it keeps doing bonding, could you try and see if it works for you?

[pauleharris]

okay
I tried bpf_red.o. It is all over the map from a speed standpoint, 10 -> 250 in tests. The failover aspect doesn't seem to work at all, it's the same responsiveness as bonding (5 seconds+ before any connectivity).

[KevinashoUWU]

Oh, it's the same thing that happens to me, it doesn't duplicate the packets, only bonding. Seamless failover doesn't work and it takes +5s to recover. I'll file a issue...

[pauleharris]

Hi,
Any updates or resolution here? I've just reinstalled all the latest and still seeing this behavior.

[Ysurac]

Via SSH, what is the result of sysctl -a | grep mptcp ?